[], (Noun)

Definitions:
- Each of a series of axial elements in the primitive vertebrate fin (archipterygium) or forelimb.

- A mesodermal segment or somite; a protovertebra.

- A blastomere of medium size, produced by some forms of embryonic cleavage. Compare macromere, micromere.


Phrases:

Origin:
late 19th century; earliest use found in Thomas Huxley (1825–1895), biologist and science educationist. From meso- + -mere